Abstract

Experimental measurements of the wall pressure and streamwise velocity fluctuations in a flat plate turbulent boundary layer were made using spanwise arrays of 32 microphone and 16 hot-wire sensors. The streamwise streaks are observed in the wall pressure space-time distributions. Appearance of the streaks is inttermittent and there exist carlmed region between active durations with the streaks. Pressure-velocity correlations indicate the size of the near wall streaks and the large scall stractures.

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